Colour-blindness and Colour-perceptionK. Paul, Trench, Trübner & Company, Limited, 1891 - 311페이지 |
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96개의 결과 중 1 - 5개
1 페이지
... spectrum - red , yellow , and blue . He believed that the simple spectrum is composed of three different spectra - red , yellow , and blue . Helmholtz pointed out , in a very able paper , the defects in Brewster's methods of ...
... spectrum - red , yellow , and blue . He believed that the simple spectrum is composed of three different spectra - red , yellow , and blue . Helmholtz pointed out , in a very able paper , the defects in Brewster's methods of ...
4 페이지
... spectrum ; but if we take precautions to prevent overlapping of the different rays , by using a very fine slit , and obtaining a very sharp and defined image of the spectrum , we see that it is not continuous , but subdivided by a ...
... spectrum ; but if we take precautions to prevent overlapping of the different rays , by using a very fine slit , and obtaining a very sharp and defined image of the spectrum , we see that it is not continuous , but subdivided by a ...
6 페이지
... spectrum consists of an enormous number of rays of light arranged side by side , each differing from the others in wave - length and refrangibility . Besides the rays of light which compose the visible spectrum , there are two other ...
... spectrum consists of an enormous number of rays of light arranged side by side , each differing from the others in wave - length and refrangibility . Besides the rays of light which compose the visible spectrum , there are two other ...
7 페이지
... spectrum be looked at through a piece of cobalt glass , a bright crimson band will be seen below the red , whilst the presence of rays above the violet is demonstrated by fluorescence and other phenomena . The most important point ...
... spectrum be looked at through a piece of cobalt glass , a bright crimson band will be seen below the red , whilst the presence of rays above the violet is demonstrated by fluorescence and other phenomena . The most important point ...
10 페이지
... spectrum produced by a good spectroscope we shall obtain a band of apparently monochromatic light . If shutters be used to the spectro- scope we shall not be able to say which is the red and which the violet side of the spectrum . By ...
... spectrum produced by a good spectroscope we shall obtain a band of apparently monochromatic light . If shutters be used to the spectro- scope we shall not be able to say which is the red and which the violet side of the spectrum . By ...
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absolute psycho-physical units after-image ANNA BLACKWELL blue-green bright brown candidate centre colour-blind person colour-perception coloured glass complementary colours contrast correctly crimson dark daylight defect definite colours Demy 8vo distinguish English Essays examination Fcap Fifth Edition four-unit Fourth Edition Frontispiece gaslight gray greenish Holmgren's Illustrations India junction large number LL.B LL.D luminosity Maps match mistakes modified unit neutral band neutral glasses normal-sighted person obtained olive-green orange painted physical series physical units Pilotage pink Plates Pocket Test points of difference Portrait Post 8vo Prof psycho-physical perception psycho-physical series psycho-physical units pure green purple red and green red end red rays retina rose Royal 8vo Sanskrit scotoma Second Edition seen shade simultaneous contrast Small crown 8vo spectroscope spectrum standard red test for colour-blindness theory Third Edition three-unit tion Translated Trinity House two-unit colour-blind violet violet end visual purple vols wools yellow and blue yellow-brown yellow-green Young-Helmholtz theory